gtm libra
Author
Discussion

marcevo1

Original Poster:

524 posts

260 months

Thursday 16th February 2006
quotequote all
hi thinking of perhaps buying a second hand libra.

any idea what sort of prices they go for?

1.8 or v6?

real alternative to the elise exige?

also the 1.8 k series - anyone supercharged a libra yet?

cheers

ricola

490 posts

301 months

Thursday 16th February 2006
quotequote all
Somebody has strapped a new mini supercharger to one, not sure of power output though. Pretty much any tuning kits for the Elise/MGs should fit if you want lots of power. I find 160bhp plenty in such a light car!

Rich

Bertram

73 posts

265 months

Thursday 16th February 2006
quotequote all
I know somebody who Turbo charged a Libra. He used an Audi 1.8 20VT in his car.

See it here: www.gtmlibra.nl


Bye,


Bertram



www.gtmlibra.nl

JonRB

79,395 posts

296 months

Thursday 16th February 2006
quotequote all
Is it finished then, Bertram?

marcevo1

Original Poster:

524 posts

260 months

Friday 17th February 2006
quotequote all
just been doing some research

looks as if the supercharger causes problems with the liners :-(

rich - you can never have too much power ;-) (actually thats a lie i drove a fwd 300bhp golf - mad mad torque steer a 850 mini could beat it!)

from reading up last night direct to head throttle bodies may be the way to 200bhp (and a lovely noise)

Marc

Paul Drawmer

5,119 posts

291 months

Friday 17th February 2006
quotequote all
marcevo1 said:
hi thinking of perhaps buying a second hand libra.
any idea what sort of prices they go for?
1.8 or v6?
real alternative to the elise exige?
also the 1.8 k series - anyone supercharged a libra yet?


Prices - surprisingly cheap - I've got one, so they should be worth LOTS MORE!!!
1.8 is more nimble - better weight distribution
V6 has more grunt - but not lardy on the road.
Exige is better car - but more money.
see above for supercharged comments.

I like mine and it isn't for sale :-)

ricola

490 posts

301 months

Friday 17th February 2006
quotequote all
marcevo1 said:

rich - you can never have too much power ;-) (actually thats a lie i drove a fwd 300bhp golf - mad mad torque steer a 850 mini could beat it!)
Marc


I'm also building a 300bhp old beetle cabrio so I'm not adverse to lots of power , just that you can spend a lot of money tuning the K series and the gains are mostly high up, 160 is a nice balance with no extra maintenance... Of course, you are welcome to buy mine and tune it up!

Rich

marcevo1

Original Poster:

524 posts

260 months

Friday 17th February 2006
quotequote all
ricola said:
marcevo1 said:

rich - you can never have too much power ;-) (actually thats a lie i drove a fwd 300bhp golf - mad mad torque steer a 850 mini could beat it!)
Marc


I'm also building a 300bhp old beetle cabrio so I'm not adverse to lots of power , just that you can spend a lot of money tuning the K series and the gains are mostly high up, 160 is a nice balance with no extra maintenance... Of course, you are welcome to buy mine and tune it up!

Rich


300bhp beetle - wheelie tastic... is that 2 or 3 bags of sand in the front? ;-)

yes dont really want top end only - used to either big engines or turbo/supercharger. would really want to retain vvc - think emerald is developing something at the moment?

yes looking at your car seriously but may be a bit pricy - seen v6's go for 9-10k ish?

Marc

Shaun_E

748 posts

284 months

Friday 17th February 2006
quotequote all
Supercharging isn't the only way to get a big power K though and 200bhp is fairly easily achievable and reliable as long as you use forged pistons. The K series in my Caterham produces 227bhp @8000rpm and around 167lbft torque - and it's not all at the top end. Admittedly its a 1900 with a well ported VVC head (bigger valves than a std K16), throttle bodies, Emerald ECU and BP285H cams. The Scholar conversion eliminates the problem of the liners moving by interference fitting custom liners to a machined block. It's available in 1800 (80mm bore) or 1900 (82mm bore) and costs about £1100 including a set of Pistal forged pistons to match.

ricola

490 posts

301 months

Friday 17th February 2006
quotequote all
marcevo1 said:


300bhp beetle - wheelie tastic... is that 2 or 3 bags of sand in the front? ;-)



I've shifted the engine forwards a bit and have a great big Pace rad in the front, it's an 03 so has suspension similar to the 944 so should go very well.

marcevo1 said:

yes dont really want top end only - used to either big engines or turbo/supercharger. would really want to retain vvc - think emerald is developing something at the moment?


Not sure how far Emerald have got either, definitely an option!

marcevo1 said:

yes looking at your car seriously but may be a bit pricy - seen v6's go for 9-10k ish?
Marc


I've not seen any V6's go for that little, lowest I've seen a Libra go for is £9k but it is all down to spec and mine has all the goodies (new design suspension, anti-roll bars, Xenons, 160ps engine, AP brakes, Recaro interior, Alpine system etc etc). I am negotiable! You don't want a V6, much heavier/thirstier..

Rich

marcevo1

Original Poster:

524 posts

260 months

Friday 17th February 2006
quotequote all
nomex suite time...

yes agree i think the v6 is heavy for the output and cost of getting more out of it.

i will get back to you next week re your motor (should have some dosh by then)

marc

m1spw

5,999 posts

249 months

Friday 17th February 2006
quotequote all
Libra's look sooo sexy

JonRB

79,395 posts

296 months

Friday 17th February 2006
quotequote all
marcevo1 said:
yes agree i think the v6 is heavy for the output and cost of getting more out of it.
True, but on the plus side it is a V6.

ferg

15,242 posts

281 months

Saturday 18th February 2006
quotequote all
On the minus side you mean....

chrisx666

808 posts

285 months

Saturday 18th February 2006
quotequote all
A standard VVC160 from a TF is the way to go IMO. The Libra is light, but not 7 light - the stock VVC's tractability is a good thing.
I bought one brand new (complete with CR gearbox) for the price of a non VVC 120->160 engine upgrade kit.

www.gtmlibra.com/Libra/Build/images/Dscf0023.jpg

Bertram

73 posts

265 months

Saturday 18th February 2006
quotequote all
JonRB said:
Is it finished then, Bertram?


No, I am not finished yet. I expact to start the engine for the first time in a few weeks from now. Making a custom exhaust, custom intercooler, custom ... etc took a lot of time. My website is pretty up to date with the current status.